H-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive Belt
H-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive Belt
H-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive Belt
H-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive Belt
H-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive Belt
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H-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive BeltH-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive BeltH-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive BeltH-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive BeltH-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive Belt

H-Type Timing Belt – 12.7mm Pitch, 30mm Wide, Rubber Closed Loop Drive Belt

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Beschreibung

 

H-Type Timing Belt with 12.7mm Pitch — Reliable Closed Loop Drive for Machines That Can't Afford Slip

If your CNC router, conveyor, or power transmission system keeps losing sync — or you're replacing a worn belt and can't find the right size locally — you know how frustrating a mismatched drive belt can be. This H-type timing belt with 12.7mm pitch is built for DIYers, hobbyists, and light industrial users who need a dependable closed-loop drive solution without hunting through specialty catalogs.

Each belt is sold individually (1 piece per order) and is made from rubber with fiber-reinforced construction, following the standard H-section trapezoidal tooth profile. The belt is 30mm (≈1.18") wide with a 12.7mm (1/2") pitch, available in models ranging from 145H to 2360H — covering perimeters from 368.8mm (≈14.5") up to 5994.4mm (≈236.0"). Select your model number and matching perimeter from the variant options above.

Typical use cases include CNC machine drives requiring precise H-pitch timing belt replacement, DIY conveyor belt systems using standard H-section pulleys, exercise equipment and woodworking machinery synchronization drives, and general-purpose closed-loop power transmission where tooth engagement accuracy matters.

🔗 Compatibility Note: These belts are designed for standard H-section timing pulleys with 12.7mm pitch and 30mm belt width. Verify your pulley groove width and pitch before ordering. The model number (e.g., 300H) corresponds to the number of teeth × pitch in the H standard.
⚠️ Size Confirmation: With 164 size variants available, please double-check your required perimeter (in mm) against the variant list before adding to cart. If you are unsure, measure your existing belt's outer circumference or calculate from your pulley center distance.

✅ Key Features of These H-Type Rubber Timing Belts

  • ⚙️Standard H-Pitch Profile — 12.7mm (1/2") pitch trapezoidal tooth design ensures positive engagement with H-section timing pulleys, preventing tooth skip under load in synchronous drive applications.
  • 🔄Closed-Loop Endless Construction — Seamless rubber loop with no joints or splices, delivering smooth, vibration-reduced power transmission for CNC routers, conveyors, and exercise equipment drives.
  • 📏Wide Size Range (145H–2360H) — Over 160 model variants covering perimeters from 368.8mm to 5994.4mm (≈14.5" to ≈236"), making it practical to find a direct replacement for most H-type timing belt applications.
  • 🧱Fiber-Reinforced Rubber Body — The rubber compound is reinforced with tensile cords that resist stretching under cyclic load, helping maintain consistent belt tension over extended use in power transmission drives.
  • 📐30mm Working Width — Wider than standard light-duty belts, the 30mm width distributes load across more tooth contact area, generally suitable for moderate torque applications in DIY and light industrial machinery.
  • 🚚Ships from US Warehouse — Stocked domestically for faster delivery, so your machine downtime stays short when you need a replacement H-type timing belt quickly.

📐 Technical Specifications — H-Type Rubber Timing Belt

Belt Type H-Section Trapezoidal Timing Belt
Pitch 12.7mm (1/2")
Belt Width 30mm (≈1.18")
Construction Closed Loop (Endless)
Material Rubber with fiber tensile cord reinforcement
Tooth Profile Trapezoidal (H-standard)
Available Models 145H – 2360H (see variant options)
Perimeter Range 368.8mm (≈14.5") – 5994.4mm (≈236.0")
Teeth Count Range 29 teeth – 472 teeth (varies by model)
Quantity per Order 1 piece
Compatible Pulleys Standard H-section timing pulleys, 30mm wide
Operating Temperature See variant options
Color / Finish Contact us to confirm

❓ Frequently Asked Questions

How do I choose the right H-type timing belt size for my machine?

Match the model number to your existing belt or pulley system. The H-type model number (e.g., 300H) encodes the number of teeth — multiply by the 12.7mm pitch to get the perimeter. For example, 300H = 300 × 12.7mm ÷ 10 = 381mm... actually, the perimeter is listed directly in each variant (e.g., 300H = 762mm ≈ 30.0"). Measure your old belt's outer circumference, or calculate from pulley center distance, then select the closest matching variant. When in doubt, go slightly larger rather than smaller.

What load or torque can this 30mm H-type timing belt handle?

H-section timing belts are generally rated for moderate-to-heavy power transmission relative to lighter XL or L pitch belts. At 30mm wide, these belts are typically suitable for light industrial machinery, CNC drives, and exercise equipment. Actual load capacity depends on operating speed, pulley diameter, and tension. Consult your drive system's engineering specs to confirm the belt is appropriately rated for your application.

Can this rubber timing belt be used outdoors or in damp conditions?

The rubber compound generally offers moderate resistance to moisture and mild oil splash, making it suitable for most indoor workshop and light industrial environments. For outdoor use, prolonged UV exposure can degrade rubber over time — shielding the drive from direct sunlight is recommended. These belts are not rated for submersion or exposure to harsh chemicals.

What pulley standard is compatible with H-type timing belts?

H-type timing belts use the imperial trapezoidal tooth profile with a 12.7mm (1/2") pitch. They are compatible with standard H-section timing pulleys rated for 30mm belt width. Do not use with HTD (metric round tooth) or GT2/GT3 pulleys — those use different tooth profiles and are not interchangeable with H-section belts.

How do I convert the belt perimeter from mm to inches?

Divide the millimeter value by 25.4. For example: 762mm ÷ 25.4 = 30.0". Each variant shows the perimeter in mm — use this formula to cross-reference with inch-based belt catalogs or OEM part numbers. Common conversions: 508mm ≈ 20.0", 1016mm ≈ 40.0", 1524mm ≈ 60.0".

Is this an endless (closed-loop) belt or can it be cut to length?

This is an endless closed-loop timing belt — it forms a continuous seamless loop with no joint. It cannot be cut and re-joined. You must select the correct perimeter variant for your drive system. Open-ended timing belt stock (sold by the foot) is a different product category.

What machines commonly use H-type timing belts with 12.7mm pitch?

H-type timing belts are commonly found in CNC routers and plasma tables, woodworking machinery (planers, jointers), exercise equipment (treadmills, ellipticals), conveyor and indexing systems, and general-purpose synchronous drive setups where precise tooth engagement is required. The 12.7mm pitch is one of the most widely used imperial timing belt standards in North America.

🛒 Select your model and perimeter above, then add to cart — ships from our US warehouse.

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